Section V
Control Interface Details
006-0006885 08/14/18
Rev H
35 of 48
MINV-4000-1U-28 Guide www.synqor.com
Digital Input/Output Control Signals
There are 3 input and 4 output digital signals available on the User I/O female high-density DB15
connector. The pin assignments and functions of these digital I/O signals are as follows:
High Density DB15 Female (15 Pin Connector)
Signal
PIN Function
TX
2
RS232 DCE Device Transmit
RX
3
RS232 DCE Device Receive
GND
4, 5
Ground reference for all digital inputs and outputs
BATTLE_MODE
6
TTL-Input*, pull “low” to engage Battle Mode to disable internal over temperature protection, has internal pull-up to +5 V.
DCIN_GOOD
7
Open collector* output where “low” indicates DC Input voltage is within range
+5 V
8
Vout with minimal current drive usable as a pull-up voltage for open collector output signals. Load must be < 35 mA
BLACKOUT_MODE
9
TTL-Input*, pull “low” to engage Blackout Mode to disable front-panel LEDs and audible alarms, has internal pull-up to +5 V.
REMOTE_START
12
Drive this line “high” with ≥ 5 mA to enable MINV outputs
SHUTDOWN
13
Drive this line “high” with ≥ 5 mA to disable MINV outputs
OUT_OK
14
Open collector* output where “low” indicates AC Output voltage is within range
OVER_TEMP
15
Open collector* output where “low” indicates that the MINV is at or above its maximum temperature
*With an internal 50 k Pull-up Resistor to 5 V and ESD Protection Diodes.
Battle Mode disables internal over-temperature shutdown limits in the MINV hardware. Battle
Mode is indicated with a flashing red light in panel postion E2. This mode can be commanded by
pulling low on I/O Port Pin 6, or via serial command
BS ON
.
Blackout Mode disables all visual and audible indication of system status. Front-panel LEDs and
audible alarms will be turned off. This mode can be commanded by pulling low on I/O Port Pin 9,
or via serial command BLACKOUT ON.
